常州沟组

燕山地区中元古代常州沟组潜穴化石

Burrow Fossils in the Changzhougou Formation of the Mesoproterozoic in the Yanshan Area

在燕山地区中元古代常州沟组中发育有大量的潜穴化石，潜穴产于常州沟组中部的泥质粉砂岩中。

A large amount of burrow fossils are found in pelitic siltstone in the middle Changzhougou Formation of the Mesoproterozoic in the Yanshan area .

同时介绍了最近又在北京十三陵中元古代的常州沟组和串岭沟组所发现自生独居石的新资料。

This paper introduces new data of authigenic monazite , which recently have been found in Mid-Proterozoic strata of the Ming Tombs District , Beijing .

最古老的后生动物痕迹化石？&对北京十三陵前寒武系常州沟组充填管状构造的探讨

Are these the oldest metazoan trace fossils also ? - a probe into burrow-like tube filling structures in Changzhougou formation of the upper Precambrian in Ming Tombs district , Beijing